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cdandpwd.java
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73 lines (69 loc) · 2.17 KB
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import java.io.*;
import java.util.*;
import java.awt.*;
public class cdandpwd {
public static void main(String[] args) throws Exception {
FastReader sc = new FastReader();
StringBuilder sb=new StringBuilder();
int num = sc.nextInt();
ArrayList<String> arr = new ArrayList<>();
for (int l = 0; l < num; l++) {
int j = 0;
String s = sc.next();
if (!s.equals("pwd")) {
s = sc.next();
if (s.charAt(0) == '/') {
arr.clear();
}
for (int i = 0; i < s.length(); i++) {
if (s.charAt(i) == '/' || s.charAt(i) == '.') {
if (i > j) {
arr.add(s.substring(j, i));
}
if (s.charAt(i) == '.') {
arr.remove(arr.size() - 1);
i++;
}
j = i + 1;
}
}
if (j < s.length()) {
arr.add(s.substring(j));
}
} else {
System.out.print("/");
for (int i=0; i< arr.size(); i++) {
System.out.print(arr.get(i) + "/");
}
System.out.println("");
}
}
}
}
class FastReader {
BufferedReader br;
StringTokenizer st;
public FastReader() { br = new BufferedReader(new InputStreamReader(System.in)); }
String next() {
while (st == null || !st.hasMoreElements()) {
try {
st = new StringTokenizer(br.readLine());
} catch (IOException e) {
e.printStackTrace();
}
}
return st.nextToken();
}
int nextInt() { return Integer.parseInt(next()); }
long nextLong() { return Long.parseLong(next()); }
double nextDouble() { return Double.parseDouble(next()); }
String nextLine() {
String str = "";
try {
str = br.readLine();
} catch (IOException e) {
e.printStackTrace();
}
return str;
}
}